ESP32-ETH01 Ethernet Module with LAN8720A – Dual WiFi Bluetooth

The ESP32-ETH01 V1.4 (also known as WT32-ETH01) is an embedded serial-to-Ethernet module developed by Wireless-Tag Technology Co. Limited. It’s a compact development board that combines ESP32 wireless capabilities with wired Ethernet connectivity, making it unique in the ESP32 ecosystem.

Key Technical Specifications

Core Processor & Memory

• MCU: ESP32-D0WD-V3 (WT32-S1 module)
• Architecture: Dual-core Tensilica LX6, 32-bit
• Clock Speed: 80-240 MHz (up to 240 MHz)
• Flash Memory: 32Mbit (4MB) onboard flash
• RAM: 520 KB SRAM
• No PSRAM: This model doesn’t include PSRAM

Wireless Connectivity

• Wi-Fi: IEEE 802.11 b/g/n (2.4 GHz)
  • Up to 150 Mbps (802.11n)
  • Frequency Range: 2.4-2.5 GHz
  • Modes: Station/SoftAP/SoftAP+Station/P2P
• Bluetooth: v4.2 BR/EDR and BLE standards
• Security: WPA/WPA2/WPA2-Enterprise/WPS
• Encryption: AES/RSA/ECC/SHA

Ethernet Connectivity

• Ethernet PHY: LAN8720A controller
• Port: RJ45 connector
• Speed: 10/100 Mbps
• Features: Cross-direct connection adaptive
• Indicators: Green (connection status), Yellow (data transmission)

Power Specifications

• Supply Voltage:
  • 3.3V or 5V input (binary choice – NOT both simultaneously)
  • Note: 5V input limited to ~6V max due to voltage regulator limitations
• Operating Current:
  • Average: 80mA
  • Minimum supply current: 500mA
• Voltage Regulator: AMS1117-3.3 (or clone)
• Operating Temperature: -40°C to +85°C

Physical Dimensions

Board Width: Generic width for direct PCB mounting

Board Size: 60mm × 26mm × 17mm

Weight: 15.4g

Mounting: Half-pad or through-hole connector compatible